Kansas City Air Quality in 2025
In 2025, Kansas City's air quality (Kansas City, MO-KS area) had a median daily AQI of 51 (Moderate) across 365 monitored days. 10 days (2.7%) reached Unhealthy for Sensitive Groups or worse, 180 were Good, and the year's peak AQI was 293 (Very Unhealthy). Fine particulate matter (PM2.5) set the daily AQI on 172 of those days. The cleanest month of 2025 was November (median AQI 40, 0 days above 100) and the worst was September (median 59, 3 days above 100, peak 136).
- Good: 49.3%
- Moderate: 47.9%
- Unhealthy for Sensitive Groups: 1.9%
- Unhealthy or worse: 0.8%
Extra Protection for Kansas City Homes
Air quality in Kansas City is moderate (AQI 64), with fine particles (PM2.5) the main concern. A True-HEPA purifier gives sensitive groups — kids, seniors and anyone with asthma or allergies — cleaner air indoors on days like today.
Recommended: Coway AP-1512HH Mighty — True HEPA + carbon · CADR ~246 CFM · rooms up to 361 sq ft
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How was Kansas City's air quality in 2025?
Moderate on a typical day: median AQI 51, with 10 days above AQI 100 out of 365 monitored — the 4th cleanest of 7 years on record for the area.
- ✓Peak AQI in 2025: 293 (Very Unhealthy).
- ✓Fine particulate matter (PM2.5) was the main pollutant on 172 days.
- ✓Cleanest month: November; worst: September.
Frequently asked questions
What was the average AQI in Kansas City in 2025?▾
EPA's Air Quality System puts Kansas City's (Kansas City, MO-KS) median daily AQI for 2025 at 51, which is Moderate. 10 days were Unhealthy for Sensitive Groups or worse and the year's highest AQI was 293.
Which month had the worst air quality in Kansas City in 2025?▾
The cleanest month of 2025 was November (median AQI 40, 0 days above 100) and the worst was September (median 59, 3 days above 100, peak 136).
Was 2025 a good or bad year for Kansas City's air?▾
Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 4th cleanest by days above AQI 100. 2025's median of 51 is below the area's typical annual median of 54.
Kansas City month by month in 2025
Kansas City air quality month by month, 2025 (Kansas City, MO-KS, EPA AQS daily AQI)
| Month | Days monitored | Median AQI | Days above 100 | Peak AQI | Main pollutant |
|---|---|---|---|---|---|
| January | 31 | 44 | 0 | 78 | PM2.5 |
| February | 28 | 52 | 0 | 65 | PM2.5 |
| March | 31 | 51 | 1 | 293 | O3 |
| April | 30 | 54 | 0 | 97 | O3 |
| May | 31 | 48 | 0 | 87 | O3 |
| June | 30 | 54 | 3 | 129 | O3 |
| July | 31 | 56 | 1 | 156 | O3 |
| August | 31 | 55 | 2 | 157 | PM2.5 |
| Septemberworst | 30 | 59 | 3 | 136 | O3 |
| October | 31 | 48 | 0 | 87 | O3 |
| Novembercleanest | 30 | 40 | 0 | 84 | PM2.5 |
| December | 31 | 48 | 0 | 74 | PM2.5 |
How 2025 compares
Among the 7 years EPA has published for the area (2019–2025), 2025 ranks 4th cleanest by days above AQI 100.
2025's median of 51 is below the area's typical annual median of 54.
Activity-specific thresholds: running, cycling, kids' sports.
Right now in Kansas City
The latest EPA AirNow observation puts Kansas City's AQI at 64 (PM2.5). The figures above are multi-year annual statistics, not today's reading.
View current Kansas City air quality →Source: EPA Air Quality System (AQS) pre-generated Daily AQI by CBSA files — daily AQI by CBSA (Kansas City, MO-KS), 2019–2025. Daily AQI per CBSA is the highest AQI reported by any monitor in the area that day; the defining parameter is the pollutant that set it. Month and season statistics pool every such day in the period across all years listed. Retrieved 2026-09-09.